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Finding the Fourth Proportional to 11,581, 15,994.98 and 7,848.52

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Solution

The fourth proportional to 11,581, 15,994.98 and 7,848.52 is: 10,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581 : 15,994.98 = 7,848.52 : x
  2. Step 2: Convert to fraction form
    11,581/15,994.98 = 7,848.52/x
  3. Step 3: Cross multiply
    11,581x = 15,994.98 × 7,848.52
  4. Step 4: Simplify right side
    11,581x = 125,536,920.43
  5. Step 5: Solve for x
    x = 125,536,920.43/11,581
  6. Step 6: Final answer
    x = 10,839.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.